Visible index signal lock



'March 22;,"1950 F. L wAssELL VISIBLE INDEX SIGNAL Locx Filed oct. 7, y194.4 'l

IN V EN TOR.

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rfalzA/I/Eys Patented Mar. 28, 1950 v 2,5oa19a. s VISIBLE INDEX sienne noon v Frank Lloyd Wassell, Westpark-Conni., assignor to Georgene 1*. Wassell, Westport, Conn.

Application October 7, 1944 Sverial No. 557,590

AFJD-he.present invention relates to visible index mechanisms and embodies, more specically, an impro-ved form of visible index wherein adjustablelsignals areprovided in conjunction with the ndeXi i. y

,More particularly; theinvention embodies an improved form of mechanism for holding adjustable'signals in anyoi` a plurality of adjusted positions and in such fashionthat accidental displacement of the signalfis prevented.

Another object of the invention is to provid mechanismby means of which an adjustable signal on a Visible index may be effectively secured in a desired positionandyet may also be easily movedinto severaladjusted positions.

Yet another object of the invention is to provideA an adjustable signal lock of the above character-wherein the signal is automatically locked or heldin any position and from which it is moved without requiring positive mechanical operationgotalocking element.

IOther and "further objects of the invention willrbenapparent as it is described in greater detail in-connection with :the drawings, wherein:

lFigure1-.,is-a perspective view of'a visible indexfmemberupon which a signal has been installed in accordance with the present invention;

Figure 2 is an enlarged view in section taken on the line 2-2 of Figure 1;

Figure is an enlarged view in onft-he line 3-3 of Figure 1; l

.Figure 4 is a detailed vView: showing asigna] member formed in accordance with the present invention;

Figure 5 is a view similar to Figure 1 showing a modified form of the invention;

Figure 6 is a view in section taken on the line 6 6 of Figure 5;

Figure 7 is an enlarged perspective view of a portion of the visible index member constructed in accordance ywith a further modication of the invention;

Figure 8 is a view similar :to Figure 7 showing a further modification of the invention;

Figure 9 is a view similar to Figure 7 oi yet another modication of the invention.

Referring to the above drawings, a visible index card vsupporting member is shown at IU, formed in any desired fashion and in accordsection taken ance with vstandard practice now used in visible index systems. The support I0 is adapted to receive a visible index card II in any suitable fashion. For example, the support may be formed with slots I2 in which the corners of the cards may be inserted thus to hold the cards 2 claims. (c1. 12s- 161) removably on the supports. The card supports I0 are preferablyadapted to be hingedly mounted on'asuitable supporting mechanism in or-der'that partsvofthecards `may be held in visible positionto= facilitate use of theindex. The particu'- lar manner of mounting the card supports forms no .part of the-present invention and need not beifurther described herein. i

In the bottomoilthe card support Ill a longi- `tudinal pocket member I3 is provided, the pocket' preferably being fromed ofv transparent material such'asrcellulosic material. TheV pocket formingi-mernberinthe' form of theinvention shown l in Figure l is'provided with a back I4, a bottom 1I5 and12a irontV |61' A staple lI'l'-may be provided -torzsecure.thepocketto the bottom edge of the cardsuppo-rt I U and in accordance with the present invention, the upper portion of the front member I S isturnedback andA against the front member -t'oiform a longitudinal bead I8. This beadiis :held against the front surface of the card support. I0, thus tofperrnit the lower edge of agalinsti-thefcard support I8 under pressure'or even against the cardv II in order to secure the advantages of the invention hereinafter mentioned.

Spaced along the bead I8 are a plurality of notches ,'I 9; "the number andl location of which mayivaryand 'may-correspond with positionsiin which a signal is desired to be adjustably mounted. Upon the front face of the card II a signal 20 is adapted to be positioned, being formed with a foot 2I adapted to engage or lock under the lower edge of the card II or the card support I0, or both. In the front of the signal 20 an enlarged or pressed out portion or detent 22 is formed. This detent 22 is adapted to be received in the notches I9, thus preventing accidental displacement of the signal 28 and holding it eiectively in a desired position. Being formed with a` stepped face 22', the detent locks the templated asbeing within the present invention.

Referringto the structure shown in Figures 5 and 6, a modified form of the invention is shown in which the upper portion of the front face I6 the iront face I6 of the pocket member I3 is :U

formed with a plurality of recesses 25 in the upper edge thereof. In this form of the invention, the front face I6 is positioned so that it lies next to the card Il so that the recesses 25 are adapted to receive the detent 22. The'proximity of the front face I6 to the card I I and to the signal strip 2D insures the engagement of the detent 22 in the recesses 25, thus to prevent accidental lateral displacement of the signal.

A further modified form of the invention is illustrated in Figure 8, wherein the front face I6 of the pocket I3 is formed with a plurality of apertures 26 which are located in such fashion that they receive the detent '22 of the signal strip 2D as it is moved longitudinally along the pocket. In this fashion, the signal strip is locked in any position corresponding to the location of the apertures.

In the form of the invention shown in Figure 9, the front face I6 of the pocket I3 is formed with a reversely extending upper redge 21. Pressed out of this edge is a multiplicity of serrations 28. These serrations are adapted to receive the detent 22 of the signal strip to hold the latter in any position to which it has been moved longitudinally of the pocket.

From the foregoing, it will be seen that the present invention has provided a mechanism by means of' which a longitudinally adjustable signal strip may be held effectively in any adjusted position so that it will not become accidentally displaced and yet the structure is such that the signal strip can be moved with facility to any desired adjusted position.

`While the invention has been described with respect to the several modifications shown in the drawings, it is not to be limited save as dened in the appended claims.

I claim:

1. A visible index signal lock comprising a visible index card holder, a member secured to said holder and forming a pocket along one edge thereof to hold a visible index card between said holder and said member, a signal extending into, and displaceable to any desired position along the length of the pocket formed by said member, said signal having a foot portion extending under said index card to hold the signal against accidental vertical displacement from said pocket, and cooperating means on said signal and along the length of said member for holding the signal against said card and against accidental longitudinal displacement from a desired position, said cooperating means consisting of interlocking detent and recess elements.

' 2, A visible index signal lock comprising a visible index card holder, a member secured to said holder and forming a pocket along one edge thereof to hold a visible index card between said holder and said member, and a signal extending into, and displaceable to any desired position along the length of the pocket formed by said member, said pocket forming member having a series of recesses and said signal having a foot portion and a detent engageable with any one of said recesses. said detent and any one of said recesses interlocking, upon engagement with one another, to hold the signal against accidental longitudinal displacement from a desired position and said foot portion extending under said index card to hold the signal against accidental vertical displacement from said pocket.

FRANK LLOYD WASSELL.

REFERENCES CITED The following references are of record in the iile of this patent:

UNITED STATES PATENTS Number Name Date 1,530,012 Rand Mar. 17, 1925 1,589,225 Rand June 15, 1926 1,794,444 Davis Mar. 3, 1931 1,975,662 Rand Oct. 2, 1934 2,005,977 Kitchen June 25, 1935 2,122,223 Von Dollen June 28, 1938 2,296,244 Finch Sept. 22, 1942 2,370,074 Roscoe Feb. 20, 1945 FOREIGN PATENTS Number Country Date 299,629 Great Britain 1928 618,564 Germany 1935 

